Ger van Graas

1.5k total citations · 1 hit paper
24 papers, 1.3k citations indexed

About

Ger van Graas is a scholar working on Mechanics of Materials, Analytical Chemistry and Environmental Chemistry. According to data from OpenAlex, Ger van Graas has authored 24 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Mechanics of Materials, 8 papers in Analytical Chemistry and 7 papers in Environmental Chemistry. Recurrent topics in Ger van Graas's work include Hydrocarbon exploration and reservoir analysis (22 papers), Petroleum Processing and Analysis (8 papers) and Methane Hydrates and Related Phenomena (7 papers). Ger van Graas is often cited by papers focused on Hydrocarbon exploration and reservoir analysis (22 papers), Petroleum Processing and Analysis (8 papers) and Methane Hydrates and Related Phenomena (7 papers). Ger van Graas collaborates with scholars based in Netherlands, Norway and Australia. Ger van Graas's co-authors include J.W. de Leeuw, Brian Horsfield, Bruce A. Tocher, Jingqiang Tan, Christopher J. Boreham, Jinchuan Zhang, Bernhard M. Krooß, P.A. Schenck, Philipp Weniger and Alexej Merkel and has published in prestigious journals such as Nature, Geochimica et Cosmochimica Acta and Fuel.

In The Last Decade

Ger van Graas

24 papers receiving 1.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Shale gas potential of the major marine shale formations in the Upper Yangtze Platform, South China, Part II: Methane sorption capacity

2014 297 citations Jingqiang Tan, Philipp Weniger et al. Fuel profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ger van Graas Netherlands	15	1.2k	421	397	377	244	24	1.3k
Leigh C. Price United States	21	1.5k 1.2×	525 1.2×	383 1.0×	464 1.2×	317 1.3×	46	1.8k
Joseph A. Curiale United States	22	1.3k 1.1×	376 0.9×	193 0.5×	626 1.7×	368 1.5×	51	1.6k
Nicolaj Mahlstedt Germany	21	1.2k 1.0×	451 1.1×	261 0.7×	494 1.3×	238 1.0×	47	1.3k
J. Paulet France	6	1.3k 1.1×	299 0.7×	178 0.4×	440 1.2×	344 1.4×	8	1.4k
Jianping Chen China	20	994 0.8×	248 0.6×	226 0.6×	255 0.7×	339 1.4×	75	1.2k
Ansong Geng China	23	1.2k 1.0×	223 0.5×	459 1.2×	745 2.0×	231 0.9×	73	1.4k
Leon Dzou United States	15	1.6k 1.4×	505 1.2×	193 0.5×	701 1.9×	550 2.3×	23	1.8k
Harry Dembicki United States	10	834 0.7×	231 0.5×	133 0.3×	277 0.7×	222 0.9×	18	929
Á. Holba United States	14	1.4k 1.2×	406 1.0×	133 0.3×	639 1.7×	526 2.2×	22	1.6k
Zhongyao Xiao China	20	1.2k 1.0×	231 0.5×	167 0.4×	545 1.4×	434 1.8×	66	1.3k

Countries citing papers authored by Ger van Graas

Since Specialization

Citations

This map shows the geographic impact of Ger van Graas's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ger van Graas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ger van Graas more than expected).

Fields of papers citing papers by Ger van Graas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ger van Graas. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ger van Graas. The network helps show where Ger van Graas may publish in the future.

Co-authorship network of co-authors of Ger van Graas

This figure shows the co-authorship network connecting the top 25 collaborators of Ger van Graas. A scholar is included among the top collaborators of Ger van Graas based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ger van Graas. Ger van Graas is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Graas, Ger van, et al.. (2024). GEOCHEMISTRY OF OILS AND GASES FROM THE VERKHNECHONSKOYE FIELD, EAST SIBERIAN BASIN: APPLICATION OF ANALYTICAL RESULTS TO RESERVOIR CHARACTERISATION. Journal of Petroleum Geology. 47(3). 291–316. 1 indexed citations

Graas, Ger van, et al.. (2021). Petroleum generation and migration in the southern Tyumen region, Western Siberia Basin, Russia. Organic Geochemistry. 152. 104178–104178. 9 indexed citations

Tan, Jingqiang, Brian Horsfield, Nicolaj Mahlstedt, et al.. (2015). Natural gas potential of Neoproterozoic and lower Palaeozoic marine shales in the Upper Yangtze Platform, South China: geological and organic geochemical characterization. International Geology Review. 57(3). 305–326. 75 indexed citations

Tan, Jingqiang, Brian Horsfield, Reinhard Fink, et al.. (2014). Shale Gas Potential of the Major Marine Shale Formations in the Upper Yangtze Platform, South China, Part III: Mineralogical, Lithofacial, Petrophysical, and Rock Mechanical Properties. Energy & Fuels. 28(4). 2322–2342. 165 indexed citations

Tan, Jingqiang, Philipp Weniger, Bernhard M. Krooß, et al.. (2014). Shale gas potential of the major marine shale formations in the Upper Yangtze Platform, South China, Part II: Methane sorption capacity. Fuel. 129. 204–218. 297 indexed citations breakdown →

Graas, Ger van, et al.. (2000). The effects of phase fractionation on the composition of oils, condensates and gases. Organic Geochemistry. 31(12). 1419–1439. 43 indexed citations

Graas, Ger van, et al.. (1998). A reservoir model for the main Pliocene reservoirs of the Bahar Field in the Caspian Sea, Azerbaijan. Petroleum Geoscience. 4(3). 259–270. 11 indexed citations

Patience, R.L., et al.. (1998). Application of light hydrocarbons (C4–C13) to oil/source rock correlations:. Organic Geochemistry. 28(12). 823–847. 85 indexed citations

Patience, R.L., Ger van Graas, & Gary H. Isaksen. (1996). Complex reservoir geochemistry of the Sleipner area, southern Viking Graben, NOCS. AAPG Bulletin. 80(8). 1512–1516. 2 indexed citations

10.

Graas, Ger van. (1996). Improved Reservoir Description of the Heidrun Field, Norway, using a Combination of Sedimentological, Geochemical and Pressure Data: ABSTRACT. AAPG Bulletin. 80. 1 indexed citations

11.

Skjevrak, Ingun, et al.. (1994). A practical approach to quantitative group type analysis of kerogens using non-dedicated pyrolysis-mass spectrometry equipment: applications and comparison with other methods. Organic Geochemistry. 22(3-5). 873–883. 2 indexed citations

12.

Graas, Ger van. (1990). Biomarker maturity parameters for high maturities: Calibration of the working range up to the oil/condensate threshold. Organic Geochemistry. 16(4-6). 1025–1032. 152 indexed citations

13.

Graas, Ger van. (1986). Biomarker distributions in asphaltenes and kerogens analysed by flash pyrolysis-gas chromatography-mass spectrometry. Organic Geochemistry. 10(4-6). 1127–1135. 36 indexed citations

14.

Solli, Hauk, Ger van Graas, Paul Leplat, & Jostein Krane. (1984). Analysis of kerogens of miocene shales in a homogenous sedimentary column. A study of maturation using flash pyrolysis techniques and carbon-13 CP-MAS NMR. Organic Geochemistry. 6. 351–358. 24 indexed citations

15.

Graas, Ger van, et al.. (1983). A study of the soluble and insoluble organic matter from the Livello Bonarelli, a Cretaceous black shale deposit in the Central Apennines, Italy. Geochimica et Cosmochimica Acta. 47(6). 1051–1059. 22 indexed citations

16.

Graas, Ger van, F. de Lange, J.W. de Leeuw, & P.A. Schenck. (1982). De-A-steroid ketones and de-A-aromatic steroid hydrocarbons in shale indicate a novel diagenetic pathway. Nature. 299(5882). 437–439. 12 indexed citations

17.

Graas, Ger van. (1982). Organic geochemistry of cretaceous black shale deposits from Italy and France. Research Repository (Delft University of Technology). 8 indexed citations

18.

Graas, Ger van, F. de Lange, J.W. de Leeuw, & P.A. Schenck. (1982). A-nor-steranes, a novel class of sedimentary hydrocarbons. Nature. 296(5852). 59–61. 23 indexed citations

19.

Graas, Ger van, J.W. de Leeuw, P.A. Schenck, & J. Haverkamp. (1981). Kerogen of Toarcian shales of the Paris Basin. A study of its maturation by flash pyrolysis techniques. Geochimica et Cosmochimica Acta. 45(12). 2465–2474. 100 indexed citations

20.

Graas, Ger van, J.W. de Leeuw, & P.A. Schenck. (1980). Characterization of coals and sedimentary organic matter by Curie-point pyrolysis—mass spectrometry. Part I. Journal of Analytical and Applied Pyrolysis. 2(3). 265–276. 24 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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